Salt water battery

Abstract

A battery electrode structure of flat configuration comprises a cast mass of electrochemically active material, said mass having contained therein and exposed opposite surfaces thereof an open-mesh electrically conductive structure adapted for connection to a battery terminal. An open-mesh electrically conductive support member in the mass and in contact with the exposed electrically conductive structure maintains electrical conductivity throughout discharge to ensure maximum use of the active material.

We claim: 
     
       1. A battery electrode structure having a substantially flat configuration comprising a cast mass of electrochemically active material, said mass having contained therein and exposed at opposed major surfaces thereof, an open-mesh electrically conductive structure for connection to a battery terminal, said cast mass further containing an open-mesh electrically conductive support member in contact with said exposed open-mesh electrically conductive structure. 
     
     
       2. A battery electrode structure as claimed in claim 1, wherein said open-mesh electrically conductive structure comprises a pair of wire screen members respectively provided at said opposed major surfaces of said electrode structure. 
     
     
       3. A battery electrode structure as claimed in claim 2, wherein said open-mesh electrically conductive support member comprises a wire screen formed in corrugations spacing and contacting said pair of wire screen members. 
     
     
       4. A battery electrode structure as claimed in claim 3 wherein said screen members are formed from copper. 
     
     
       5. A battery electrode structure as claimed in claim 1, wherein said cast mass is lead chloride. 
     
     
       6. A battery electrode structure as claimed in claim 1, wherein said cast mass is a mixture of lead chloride and copper chloride. 
     
     
       7. A battery electrode structure as claimed in claim 1, wherein said cast mass is a mixture of lead chloride and silver chloride. 
     
     
       8. A battery electrode structure as claimed in claim 3 wherein said pair of wire screen members extend beyond one extremity of said cast mass and are attached to a connector member extending across said extremity and adapted for connection to a battery terminal.